Empire Heating Systems 3588-4 Installer And Serviceman's Manual page 8

*Dotted lines show the gas valve and flue collar for Model No. 3588 only. (Same side)
Register
width
Model No. A
3588 22 3/4
5088 24 3/4
7088 32 3/4
Floor joists are on 16-inch centers. If you cut away one joist, the
next two are then on 32-inch centers. Because of the thickness of
the joists, that means there is about 30 1/2 inches of space between
them—just enough for the biggest floor furnace, Model 7088, which
is 30 inches wide. The smaller furnaces will need an additional sup-
port along the one side, or on both sides if you are centering the
32186-0-0513
Register Casing Casing
length width length
B C
34 3/4 20
36 3/4 22
36 3/4 30
Figure 10
Figure 11
Overall Floor to
height Flue C.
D E
32 24 15 1/4
34 26 16 3/4
34 27 15 1/4
furnace between two joists because location is critical. see Figure
10. If the location is not critical, it is easier for you to put the furnace
against a joist and then fill in with one additional support.
Floor to Floor to
shield gas inlet
F G
10 1/2 18 1/2
12 3/4 20 1/4
12 3/4 20 1/4
Flue C.
size
H I
4 D.
4 D.
5 D.
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